Drinking Water Compliance OS

U.S. water systems

Maryland Water Systems

Maryland

1,552 community water systems on record — 463 active, 1,089 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Maryland’s official records. Always confirm current status with Maryland before making decisions based on this information.

Counties in Maryland

All community water systems in Maryland